In the present paper, we are going to use the Randall-Sundrum II braneworld
model to study the original and generalized Chaplygin gas as a candidate for
the primordial inflation by assuming that the matter source on the brane
consist of a Chaplygin gas. The Chaplygin gas emerges as a effective fluid
of a generalized d-brane in a (\(d+1\) , 1) spacetime, where the action can
be written as a generalized Born–Infeld action [1]}. These models
have been extensively studied in the literature [2]}. The
motivation for introducing Chaplygin-brane scenarios is the increasing
interest in higher-dimensional cosmological models, motivated by superstring
theory, where the matter fields are confined to a lower-dimensional brane
while gravity can propagate in the bulk. On the other hand, the Chaplygin
gas model seems to be a viable alternative to models that provide an
accelerated expansion of the early universe. Our aim is to quantify the
modifications of the Chaplygin inspired inflation in the Braneworld scenario. We use the monomial potential to study various perturbation
spectrum parameters such as the scalar spectral index \(n_{s}\)  and the ratio \(r\)  and the running of the scalar spectral index \(\frac{dn_{s}}{d\ln (k)}\)  in
the high-energy limit, particularly for a suitable choice of the different
parameters. We show that the inflation parameters are in good agreement with
recent Planck 2015 data [3]}.
